MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1054 - Unknown column 'date' in 'field list'
Query:
SELECT (select min(STR_TO_DATE(date, '%d-%m-%Y')) from mybb_events where description = concat('tid=',t.tid)) startdate, (select max(STR_TO_DATE(date, '%d-%m-%Y')) from mybb_events where description = concat('tid=',t.tid)) enddate, t.subject t_subject, u.*, u.username AS userusername, p.*, f.*, eu.username AS editusername FROM mybb_threads t LEFT JOIN mybb_posts p ON p.tid=t.tid and t.firstpost=p.pid LEFT JOIN mybb_users u ON (u.uid=p.uid) LEFT JOIN mybb_userfields f ON (f.ufid=u.uid) LEFT JOIN mybb_users eu ON (eu.uid=p.edituid) WHERE t.tid in (select substring(description,5,15) from mybb_events where description like 'tid=%') ORDER BY (select min(STR_TO_DATE(date, '%d-%m-%Y')) from mybb_events where description = concat('tid=',t.tid)) desc, t.dateline desc limit 0, 10